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Comparison Polar H9 vs Garmin HRM Dual

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Polar H9
Garmin HRM Dual
Polar H9Garmin HRM Dual
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Main
Girth from 63.5 to 132 cm
Device typeheart rate sensorheart rate sensor
Mount
on the chest
on the chest
Specs
Displayis absentis absent
Possible measurements
pulse rate
pulse rate
More features
CompatibilityAndroid/iOS
Data transfer
Bluetooth
ANT+
Bluetooth /5.0/
ANT+
General
Source of power
battery /CR2025/
battery /CR2032/
Water protection++
Waterproof30 m10 m
Built-in memory
Dimensions65x34x10 mm62x34x11 mm
Band sizeXS-S: 51 – 66, M-XXL: 65 – 93, XXXL: 76 – 116 cm63.5 – 132 cm
Weight21 g54 g
Color
Added to E-Catalogoctober 2020september 2020

Compatibility

Mobile operating systems that the device is compatible with.

Many modern heart rate monitors, pedometers and heart sensors(see "Type") can be connected to a smartphone or tablet to process the collected data in a special application. Such applications provide a wide variety of possibilities that would be difficult or impossible to provide in the device itself. However, for the gadget to work properly with a smartphone or tablet, it must be compatible with the corresponding mobile OS.

Today, the market is dominated by two "OSes":

Android. Developed by Google, this system is embraced by a range of manufacturers, from industry giants like Samsung and Asus to lesser-known Chinese brands. The diversity of devices running on this OS is vast, as is the array of system versions, proprietary interfaces, and firmware. Therefore, when selecting a device to pair with an Android smartphone or tablet, it's advisable to ensure compatibility between the specific devices in question.

iOS. Exclusive to Apple's portable devices — iPhone smartphones, iPad tablets, and iPod touch media players — the proprietary operating system is consistent in its lineup. Regular and widespread OS updates ensure seamless compatibility between fitness gadgets and iOS devices. Compatibility concerns arise mainly with outdated or hacked ("jailbreak") system version...s or older Apple devices (3 years or more).

Waterproof

The degree of water protection provided for in the design of the device.

The specified underwater depth for device functionality is often given, but it's important to note that these values are somewhat arbitrary and don't accurately reflect real-world water resistance. The assessments only consider static pressure, neglecting dynamic pressure created by movement, including immersion.

Effectively, genuine water resistance can only be claimed at a minimum of 30m. Even then, such capabilities only withstand minor exposure like rain. Brief water exposure, like swimming, might be permitted at 50m (not universally). For depths of 2 — 3m, 100m is necessary, and serious diving requires a minimum of 200m (or 300m for depths exceeding 20m).

Built-in memory

The device has its own built-in memory.

Almost every sophisticated electronic device has a certain amount of memory, but here we specifically refer to permanent memory. This type of memory is ideal for long-term data storage, ensuring information is retained even during power outages. Its presence enables the device to operate autonomously, storing training logs, individual settings, and other essential data without the need for communication with other devices.
Polar H9 often compared
Garmin HRM Dual often compared